A043874 Numbers k such that the number of runs in the base-4 representation of k is congruent to 7 (mod 10).

4369, 4370, 4371, 4376, 4377, 4379, 4380, 4381, 4382, 4385, 4386, 4387, 4388, 4390, 4391, 4396, 4397, 4398, 4401, 4402, 4403, 4404, 4406, 4407, 4408, 4409, 4411, 4484, 4486, 4487, 4488, 4489, 4491, 4492, 4493, 4494

Offset

1,1

Comments

Superset of A043598. Differs from A043865, from A043857 and from A043843 because numbers with run lengths of 17, 16, 15 or 14 clearly exist which are in only one these sequences. - R. J. Mathar, Oct 20 2008

Links

Table of n, a(n) for n=1..36.

Mathematica

Select[Range[5000], Mod[Length[Split[IntegerDigits[#, 4]]], 10]==7&] (* Harvey P. Dale, Mar 19 2012 *)

Crossrefs

Cf. A043598, A043865, A043857, A043843.

Sequence in context: A043843 A043857 A043865 * A335326 A190135 A207047

Adjacent sequences: A043871 A043872 A043873 * A043875 A043876 A043877

Keyword

nonn,base

Author

Clark Kimberling

Status

approved